Adjustable window screen



May 19, 1925. 1,538,777

' Zeman l P lVENTORS ATTORNEY W ITNESS May 19, 1925.

A. ZEMAN ET AL ADJUSTABLE WINDOW SCREEN Filed Dec. 11, 1920 2 Sheets-Sheet 2 'Q An ton Zeman ATTORNEY j WITNESS:

Patented May 19, 1925.

UNITED STATES ANTON ZEMAN, CAMDEN, NEW J'ER DELPHIA, PENNSYLVANIA; SAID SEY, AND GEORGE NEMEC, OF PHILA- NEMEC ASSIGNOR T SAID ZEMAN.

ADJUSTABLE WINDOW SCREEN.

To all whom it may concern:

Be it known that we, ANTON ZEMAN and GEORGE W. NEMEC, citizens of Czechoslovakia and the United States, respectively, residing at Fairview and Philadelphia, respectively, in the counties of Camden and Philadelphia, respectively, and States of New Jersey and Pennsylvania, respectively, have invented new and useful Improvements in Adjustable Window Screens, of which the following is a specification.

This invention relates to window screens, and it has more particular reference to that type or form of device which includes a casing that houses a spring influenced screen or curtain roller which is adapted for connection to and movement simultaneously with the raising or lowering of a window-sash, said mechanism having associated therewith means whereby. the opening to the atmosphere is protected from incoming dust, dirt, vermin, flies or the like.

Another object of this invention is to provide a novel form of window screen which may readily be fitted to any window frame for either temporary or-permanent use.

' lVith the foregoing and other objects in view as will later on be more apparent this invention consists essentially in making the screen telescopic or adjustably adaptable for fitment to windows of different width, and in the novel features of construction, combination and arrangements of parts hereinafter fully described, and more specifically defined by the appended claims.

In the further disclosure of the invention reference is to be had to the accompanying sheets of ex lanatory drawings, constituting a part of t is speeification, and in which similar characters. of reference 'denote the same or corresponding parts in all the views.

Figure 1 is a fragmentary front elevationof a portion of a window frame and lower sash having my improved window screen fitted thereto.

Figure 2 is a vertical section of the same and taken approximately on the line 22 in Figure 1.

Figure 3 is a longitudinal section through the tclescopic'casing for the screen, and is taken on the line 33 in Figure 1.

Figured is a transverse section on the line H in. Figure 3.

- Figure 5 is' a transverse section on the line 5-5 in Figure 3.

Application filed December 11, 1920. Serial No. 429,941.

Figure 6 is a transverse section on the line 6-6 in Figure 3.

Figure 7 is an end elevation of the telescopic casing for the screen with a. portion of one of the grooved side members or brackets hereinafter more particularlyreferred to. I

Figure 8 is a fragmentary perspective elevation of the lower portion of one of the grooved side members.

Figure 9 is an enlarged sectional detail taken approximatel on the line 1111 in Figure 1, and 100 mg to the left hand thereof; and

Figure is a similar enlarged sectional detail taken approximatel on the line 1212 in Figure 1, and likewise looking towards the left hand thereof.

Referring to the drawings the numeral 13 designates a fragmentar portion of the lower structure of a wind dw including a sash 14, said window having the usual sill and the side stiles or frames 16, and-said sash 14 being mounted to slide vertically therein in the usual Well known way. Adapted for disposition horizontally across the sill 15 is a casing or box-like structure 17 which comprises opposed end telesco ic sections 18, 18, and an intermediate section 19, said casing 17 being preferably made of thin sheet metal bent or otherwise formed to the U-shape shown in Figures 4 to 7, more particularly. This casing or box-like structure 17 also. includes end'mem'bers or walls 20 which are similarly stamped from sheet metal and are provided with outwardly projecting ears and a channel shaped flange 21, 22, respectively, which serve as a means whereby the end sections may be connected thereto as by rivets 23 whilst the back or web of the latter 22 forms a seat for the back wall 24 which thereto by rivets 25. It'is also to be here noted that th upper longitudinal edge of each end section 18 is rolled or turned over at 26 to constitute a guide for the similarly rolled or turned over upper beaded edge 27 of the intermediate section 19, or in other words the beaded edge 27' is adapted for telescopic engagement in the correspondingly beaded edges 26 of both end sections 18 as will be clearly understood on an in spection of the drawings. In like manner the lower edge of the intermediate section 19 is turned over into substantially U-shaped is similarly secured cross section to constitute a guide or runner 28 for co-operation with the lower edge of the end sections 18.

The back Wall 24, similarly comprises end or telescopic sectional members 29, 29, and a medial member 30, the latter being of substantially L-shape in cross-section, that is to say it is formed with a lower longitudinal angled edge 31. On the otherhand the end members 29 29, are turned over at their upper longitudinal edges to form U-shaped guides 32 for engagement over the upper longitudinal edge of the medial member 30, whilst the lower longitudinal edges are turned over to constitute U-shape runners 33 for the lower angled edge 31 of the aforesaid medial member. It is also to be particularly noted that the inner lower U-shaped runners 33 are cut at 34Figure 3and downwardly stepped to 4 provide ears or gripping members 35 which engage beneath the lower turned over edge of the intermediate casing section 19.

Rotatably mounted in a journal 36 longi-.

tudinally of the aforesaid casing 17 is a spring-influenced shade roller 37 to which is attached the inner end of a reticulated or wire mesh screen or curtain 38 which is adaptedto be drawn up out of said casing 17 through the aperture or slot 39 provided between the front or U-shaped walls and the back wall 24 as will be clearly understood on an inspection of Figure 2 more particularly. This roller 37-is of the well known shade roller type but is provided at the spring actuated end with an improved construction of cap-piece-40 which eliminates the employment of nails or wire brads for its attachment, and to this end I form said cap-piece 40 with inwardly protecting prongs 41 which engage in the end of the wooden roller 37. Longitudinally projecting from the outer end of the cap-piece 40 are a plurality of opposed teeth or tongues 42 of segmental cross section as will be clearly seen on an examination of Figure 6, and said teeth or tongues'42 being adapted to be engaged by a retaining dog or finger operably looking-pawl 43 which is pivoted at 44 on the adjoining end wall 20 and fashioned with a finger hold or key piece 45 that projects through a slot 46 provided for the purpose in the end section 18. The shade roller influencing spring is anchored at its outer end by a projecting pin or axle 47 which is engaged in a T-shaped slot 48 formed for its reception in the adjoining end wall 20. I

It is also to be particularly noted that in connection with the aforesaid side uprights 49 we head or roll the lower frontal edge of the wall 52 at 69, said bead or roll being adaptedv w engage the upper rolled over or beaded edges 26 on the end sections 18, whilst the other wall 51 of said uprights is downwardly extended at and formed with a turned over ear or tongue 71 which when the parts are assembled clips over or engages snugly on the channel shaped flange 22 on the adjoining end wall 20 here inbefore described, said assen'iblage of parts being clearly discernible from Figures 3 and 7 more particularly. In order to strengthen the inner andouter edges of the spaced walls 51, 52, we preferably roll the edges upon themselves as shown at 72.

Connected in any appropriate manner with the upper longitudinal edge of the reticulated screen or curtain 38 is a rod 73 housed in a seamed or longitudinally split tube 74 which is telescopically mounted in therolled or beaded edges 75 of opposed sections 7 6 of substantially tubular formation in cross section as shown, to an enlarged scale in Figure 11. These sections 76 are each preferably made from a strip of sheet metal folded longitudinally upon itself at 77, one of said folded over parts being then rolled along the edge to provide the aforesaid head 75, whereas the other folded over part is bent at right angles to provide a laterallyprojecting limb or strip 8, which is in turn folded upon itself and downwardly inclined at 79 for the purpose later on explained. It is also to be observed that these sections 76 are cut-away at their outer ends 80 in so far as the laterally pro- .jecting strips 78 are concerned so that the vertically disposed portions 77 may ride freely up and down the grooves or guides 53, and it is to be noted that when the screen or curtain. 38 is rolled up on the roller 37 these sections will to a great extent close in theslot 39 and thereby effectively prevent the ingress of dirt, ra n and the like into the casing 17 Stamped or otherwise pressed-up from the lateral limb'78 of each section 76 is a turned-over ear 81 which forms a pivot for a bayonet or T-shaped eyelet or ring 82.

. screen 38 as in the case of very wide windows we may employ an additional centrally located support 85 which consists of a strip of metal folded upon itself as shown clearly in Figure 12, and formed to provide springy gripping jaws 86 which can be clamped over. the hereinbefore described split-tube 74 by means of a wood screw 87 being driven into reebie),

this invention. appertains. 1 Assuming that our improvedwindow screen constructed and assembled-as heref; inbefore is installed'in a window. 13 shown by F igures'l and 2, itswill be readily.' seen that when-it is desired to raise the, lower sash 14 a distance for purposes of 'ventilation, and that in doing so it is desired that the opening formed by the raising of said sash be-properly-s'creened to prevent the entry of insects and the like, and thatthe ventilation will be such. as not to cause a direct draft into the room and further help to keep out any inclement weathersuch as rain, sleet 0 snow; to accomplish said results the T-shaped e elets hing'edly attached.

to the opposed rai sections 76 are firstly hooked onto the screws 83 in the bottom rail of the sash 14',- either before or after the said sash is raised, thuscausing the screen .38 to be unwound'fromthe spring roller 37 and pulled out of the box-like casing 17 through v the slot 39 therein and thus covered the opening made -b the raising of the lower window sash. n this osition' it will ,be

' readily seen that the win ow opening created any insects or the like,.and that I ventilation will be provided by the raising, of the lower sashlet will be effectively screened to prevent the entry of adequate When the window is ofconsiderable width it will be obvious that the centrally located support 85 may be connected up as hereinbefore de-' scribed whereby the screen or curtain 38 will be prevented from sagging or bulging 'pawlr43 will bereleased by the finger piece or key 45, so that the spring in the roller 57 will wind up curtain38, and thereby return said screen orc;curtain automatically back into the boxand be kept in snug alignment over the opening created by the raising of the lower sash On closing down the lower sash 14 it will ofcourse be understood that the locking a pressure on the. screen or like casing 17.

Frnm the foregoing description and an examination of the drawings it will be readilyseen that by our invention we provide a combined window screen and ventilator which is readily adjustable to windows of difi'erent widths due to the telescopic construction of the box-like casing 17 and its can be equally'welljinstalled at the top of a window and made operable with the upper sash. -F irthermore it to be noted 'that' a window screen and ventilator of the type described is of very... simple construction and "cannot get out of order, whilst it provides an efiicient' means for ventilating-a room or apartment without the risk of bad. and unacquainted with the art to which our invention appertains. A still further advantage accruing to our appliance is that by the use of a very fine reticulated screen or curtain 38, or theuse of a fabric screen, the entering air passing therethrough Will be filtered or freed from dust and the like, whilst if said screen or curtain 38 is impregnated with an appropriate disinfectant foul gases carried by said incoming air can be sterilized and thoroughly purified before circulating in the room or apartment.

Finally we wish it clearly understood that whilst we have described and shown the best form of our invention at present known to us we do not restrict ourselves to the precise details of construction, combination and arrangement of parts disclosed, but deem ourselves at liberty to make such changes and other arrangements of the several parts as may be reasonably construed as falling within the scope of the appended claim.

Having described our invention what we claim as new and desire to secure by Letters Patent is The combination with a window frame of a sash slidably mounted therein, a substantially tubular casing transversely mounted Within said frame, said casing having a longitudinal screen opening and comprising, end sections of substantially U-shaped cross section with the upper and lower-edges thereof headed for longitudinal slidable adjustment, and an intermediate section of similar shape and correspondingly headed for slidable longitudinaladjustment in relation to said end sections, transversely disposed end walls closing the opposite ends of said casing, laterally projecting ears on said end sections,

' screen mounted on said roller adapted to be withdrawn from or redrawn into said casing thereby, uprights of substantially L- shaped cross section attached to opposite sides of the Window frame, a downwardly extended Wall on said upright provided with a hooked ear portion, a second wall adjacent the first mentioned wall spaced therefrom and having its lower end beaded, said hooked ear portion and beaded portion 0 said Walls being adapted to clamp the end sections of the casing to the uprights, means restrain and lock said roller against baolr motion when said screen is withdrawn from the casing or be released and thereby unlock said roller for back motion when desired.

In testimony whereof we aifix our signa- 20 tnres.

ANTON ZEMAN. GEORGE W. NEMEG. 

